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Forclaz Men's Backpacking 50+10 L Backpack MT500 Air

Sale price: $139.00 Regular price:

Developed from the TREK 500, the MT500 AIR range has a new taut mesh back as well as a new polyamide component combining light weight and strength. The perfect bag for all types of hike!

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Sale price: $139.00 Regular price:

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About this item:

  • This backpack is made for multiple days hiking or trekking in autonomy. You can carry everything you need to camp, drink and eat on your back with comfort.
  • The MT500 AIR only weighs 3.7 lbs and can contain a total volume of 50 liters which we recommend for a trip over 2 weeks long. The top of the bag is adjustable and can hold an extral 10 liters of volume.
  • This backpack has plenty of features if you are looking for a technical option at a fair price: AIR concept back ventilation, rain cover, water bottle holder, hiking poles holder, 8 pockets and a compartment for a water bladder for easy hydration.
  • The AIR concept: in order for your back to dry faster, we added a mesh on top of a ventilated structure. Ideal for long and sweaty day hikes from one camp to another !
  • This is a men's backpack: This bag has been conceived for a masculine morphology (torso and hips). We recommend to consider the users physical morphology when you choose a bag for comfort purposes when carrying it on your back.
  • 10-year warranty: the fabric of the bag is ultra resistant and Decathlon is proud to offer this warranty for any defect that could appear in the next 10 years.
Model: 8581388

Product Videos

Product Features

Forclaz Men's Backpacking 50+10 L Backpack MT500 Air | Looking for a backpack that is both comfortable and versatile without being too heavy? The MT500 AIR has been designed for you by our team of enthusiasts.

Developed from the TREK 500, the MT500 AIR range has a new taut mesh back as well as a new polyamide component combining light weight and strength. The perfect bag for all types of hike!

A photo of the Forclaz Men's Backpacking 50+10 L Backpack MT500 Air in use
A photo of the Forclaz Men's Backpacking 50+10 L Backpack MT500 Air in use

Carrying comfort

Perfect for men carrying up to 33 lbs. Ventilated back, adjustable height

Multiple compartments

Split capacity, wide front access, access to bottom of bag, 8 pockets


Bottle holder, pole holder, rain cover, multi-use straps


Lightweight but durable polyamide main fabric, reinforced bag base


Reinforced frame with mesh reducing pressure and letting the back breathe.

Easy hydration

Internal compartment for a water bladder (not included)


3.7 lbs.: the empty weight indicated is that of our benchmark sample

Questions & Answers

Look for product information, frequently asked questions, opinions...


Hi! How do I remove stays of this backpack?


We recommend reading this page for complete details.

By Uluç on July 19, 2023 | STAFF


Is the fit - the suspension - adjustable? I'm 6-2


We're happy to inform you that the torso length of the backpack is indeed adjustable to accommodate different body sizes, including yours at 6'2". To ensure a comfortable fit, it's essential to measure your torso length accurately. This measurement is the distance between your 7th vertebra (the prominent bone at the base of your neck) and your ilium (the top of your hip bones). Our backpack's adjustable torso length ranges from a minimum of 39 cm (15 inches) to a maximum of 51 cm (20 inches). Additionally, the waistband of the backpack is also adjustable to provide a snug fit around your waist. The waistband adjustment ranges from a minimum of 79 cm (31 inches) to a maximum of 136 cm (54 inches). Furthermore, the back panel of the backpack is adjustable with a release strap, making it easy and quick to customize the fit according to your preferences and body size. For the most comfortable and personalized fit, we recommend measuring your torso length and waist size using the provided guidelines before making your selection.

By Uluç on Apr 22, 2023 | STAFF


Is this backpack waterproof? Thanks


The backpack includes a raincover stored in the bottom pocket, providing protection from rain.

By Uluç on Apr 25, 2023 | STAFF

Product Customer Reviews

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Very satisfied

Very satisfied

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Great satisfaction. A quality backpack at an affordable price

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I'm finding myself happy especially with the various compartments

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the backpack was bought as a gift, it brought great joy. High quality, well designed, lightweight

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Very nice product

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Excellent value for money

Excellent value for money

Great for the price, lots of pockets and a bottle holder ideally at an angle.

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In the top !

Worn on difficult hikes with big changes in altitude, copes without problem with 11kg in the bag and it feels like carrying 5 the only weak point, the belt straps are much too long

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Very good test

Tested for the first time last weekend, nothing to say, it is perfect; Everything fits in there and we keep discovering that we still have room. Good holding comfort and multiple adjustments for perfect ergonomics.

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Great quality for the price

The bag is great and light, perfect for long walks. I took it hiking for 2 days 1 night and I was pleasantly surprised by its comfort. Good support at hip level and I only felt the weight I was carrying after removing the bag at the end of the day. I recommend without hesitation!

Good 👍🏻😊

Very good 👍🏻😊

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This backpack was recommended to us and it is perfect and meets our expectations

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Additional Product Information


Main fabric: 100.0% Polyamide ; Lining: 100.0% Polyester ; Yoke: 100.0% Polyamide ; Webbing: 100.0% Polypropylene ; Bag cover: 100.0% Polyester ; Coating: 100.0% Polyurethane


Bag dimensions when in use: Height : 65 cm / 26 in Width: 35cm / 14 inDepth: 35 Cm/14 inTorso length (= distance 7th vertebrate - ilium): Minimum: 39 Cm/15 in Maximum: 51 Cm/20 in The waistband:Minimum: 79 Cm/31 in Maximum: 136 cm / 54 in


The bag has a 50 L capacity with an extra 10 L extension capability. The volume of each backpack is measured using a standardized method. we use small balls to fill the main compartment as well as each pocket. The balls are then emptied into a graduated container in order to determine the equivalent volume in liters, with a margin of error of just a few %.


3.7 lbs. All inclusive.Weight of the removable rain cover 3.5 oz.

Air design

As with the MT900 UL line, the MT500 AIR range has a ventilated back structure with mesh fabric (net fabric) that helps the back to breathe and dries quickly. Rigidity is guaranteed by a reinforced frame. The back is adjustable with a release strap that’s easy and quick to use.


Polyamide main fabric 210D RS (Ripstop = increased resistance to tears), reinforced bag base (420Dx330D RS)

Recommended carry weight

According to the project for which this backpack was designed, we recommend you don’t load it above 33 lbs. Then you can benefit from all its features. Moreover, it’s not recommended to carry a load greater than 20-25% of your own weight and put too much pressure on your back.

How to pack a backpack?

Put your bedding at the bottom. Put heavy gear (tent, camp stove, food) near your back. Store your clothing around it. A groundsheet or tent can be placed under the flap or under the bag if there isn't room inside. Keep your waterproof jacket and fleece to hand. Place small items for daily use (sun cream, map, glasses etc.) in the pockets. The water bladder can be placed in the compartment provided down the back.

How to use the multi-use straps?

The new range of MT500 AIR and MT900 UL bags has two straps with open aluminum buckles (on the lower part of the bag). These straps let you hook on a tent or mattress under the bag or on the barrel. If not in use, these straps can be stored (by pushing them inside) in the hidden pocket intended for this or detached and used elsewhere with the lark's head knot buckle.

Complementary accessories

To make your MT500 AIR bag easier to use, check out our storage accessories, repair buckles or hanging straps. check out our accessories

Product testing

All our backpacks undergo field tests by users who are representative of our target market under similar conditions to those you will encounter. To test, assess and validate products, our mission test connects the product manager responsible for the product design with individuals independent to DECATHLON. This backpack was tested by trekkers for 5 weeks in the Canary Islands, the Pyrenees and the Mont Blanc mountain range.

Storage instructions

Store your bag in a dry, ventilated place away from direct light.




Size Guide Visual

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